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Finding the Fourth Proportional to 323,834.04, 485,783.46 and 99,191.88

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Solution

The fourth proportional to 323,834.04, 485,783.46 and 99,191.88 is: 148,797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,834.04 : 485,783.46 = 99,191.88 : x
  2. Step 2: Convert to fraction form
    323,834.04/485,783.46 = 99,191.88/x
  3. Step 3: Cross multiply
    323,834.04x = 485,783.46 × 99,191.88
  4. Step 4: Simplify right side
    323,834.04x = 48,185,774,670.30
  5. Step 5: Solve for x
    x = 48,185,774,670.30/323,834.04
  6. Step 6: Final answer
    x = 148,797.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.